<?php
/**
 * @name		CodeIgniter Advanced Images
 * @author		Jens Segers
 * @link		http://www.jenssegers.be
 * @license		MIT License Copyright (c) 2012 Jens Segers
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

/**
 * Image
 *
 * Generates a modified image source to work with the advanced images controller
 *
 * @access	public
 * @param	mixed
 * @return	string
 */
if (!function_exists('image')) {
    function image($image_path, $preset,$noimage = "") {
        $ci = &get_instance();
        
        // load the allowed image presets
        if($image_path == "")
        {
            if($noimage == "")
            {
                $image_path = 'img/default/no-img.gif';
            }
            else
            {
                if($noimage == "logo")
                {
                    $image_path = 'img/default/logo_white.png';
                }
                else
                {
                    $image_path = $noimage;
                }
            }
                
        }
        $ci->load->config("images");
        $sizes = $ci->config->item("image_sizes");
        
        $pathinfo = pathinfo($image_path);
        $new_path = $image_path;
        // check if requested preset exists
        if (isset($sizes[$preset]) ) {
            $new_path = base_url().'media/'.$pathinfo["dirname"] . "/" . $pathinfo["filename"] . "-" . implode("x", $sizes[$preset]) . "." . $pathinfo["extension"];
        }
        
        return $new_path;
    }
}